CN203050552U - Connecting joint for petroleum drilling - Google Patents
Connecting joint for petroleum drilling Download PDFInfo
- Publication number
- CN203050552U CN203050552U CN 201320067942 CN201320067942U CN203050552U CN 203050552 U CN203050552 U CN 203050552U CN 201320067942 CN201320067942 CN 201320067942 CN 201320067942 U CN201320067942 U CN 201320067942U CN 203050552 U CN203050552 U CN 203050552U
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- CN
- China
- Prior art keywords
- joint
- dovetail
- cone
- back joint
- front connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a connecting joint for petroleum drilling. A front joint (1) and a back joint (2) are of hollow structures, a back end periphery of the front joint (1) and a front end periphery of the back joint (2) are respectively provided with a semi-dovetail boss (8), a cone-shaped boss (4) is formed in the back end of the front joint (1), a cone-shaped hole (5) is formed in the front end of the back joint (2), external threads are formed in the cone-shaped boss (4), internal threads are formed in the cone-shaped hole (5), the cone-shaped boss (4) is connected with the cone-shaped hole (5) through threads, the back end of the front joint (1) is tightly adhered to the front end of the back joint (2), dovetail rings (3) are embedded in the semi-dovetail bosses (8), and the two dovetail rings (3) are fixedly connected through a bolt (6). The connecting joint for petroleum drilling has the advantages of being not prone to lose efficiency, good in sealing effect and long in service life.
Description
Technical field
The utility model relates to a kind of oil exploration equipment, is specifically related to a kind of oil drilling jointing.
Background technology
Traditional joint of petroleum drill rod adopts and is connected by the mode that screw threads for fastening links together with male connection by female adapter.Female adapter and male connection are arranged on the end of drilling rod by the mode of friction welding.Since drilling rod directly with the stratum contact friction, its stressed complexity need be born stretchings, reverses, load effects such as crooked, interior pressure and external pressure when work, and is subjected to force intensity big, the load categories variation is easy to cause joint fails soon.Generally, the inefficacy of joint shows that female adapter expands female adapter longitudinal cracking, aspects such as male connection screw thread damage.Situations such as joint fails can cause that drilling tool drops also can cause oil well to be scrapped when situation is serious, cause enormous economic loss.
The utility model content
The purpose of this utility model namely is to overcome the deficiency that prior art lost efficacy easily, and a kind of oil drilling jointing is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of oil drilling jointing, it comprises front connector, back joint and dovetail ring, front connector and back joint all are hollow-core construction, the front end periphery of the rear perpheral of front connector and back joint all is provided with half dovetail boss, and the rear end of front connector is provided with tapered protrusion, and the front end of back joint is provided with bellmouth, tapered protrusion is provided with external screw thread, be provided with internal thread in the bellmouth, tapered protrusion and bellmouth are by being threaded, and the front end of back joint is close in the rear end of front connector; The dovetail ring is embedded on the half dovetail boss, and two dovetail rings are connected and fixed by bolt.On the basis of tapered protrusion and bellmouth, by being threaded, can make stress distribution more even, effectively prevent the generation of failure conditions.Adopt two and half dovetail boss to be combined to form a complete dovetail boss, and be connected and fixed by two dovetail rings, good sealing effect not only, and can prevent front connector and back joint screw thread loosening in the course of the work, the situation that can prevent to lose efficacy takes place.
Further, be provided with seal gasket between described two dovetail rings.Further strengthen sealing effectiveness, prevented from contact with the junction of front connector with the back joint between the medium such as mud, increased front connector and back application life of joint.
Further, described internal thread and external screw thread are angular thread.
Advantage of the present utility model and beneficial effect are:
1. by the cooperating of half dovetail boss and dovetail ring, can prevent front connector and back joint screw thread loosening in the course of the work, can prevent the situation generation of losing efficacy;
2. be provided with seal gasket, good sealing effect has increased application life of front connector and back joint;
On the basis of tapered protrusion and bellmouth by being threaded, its stress distribution is even, can effectively prevent situation about losing efficacy to take place.
Description of drawings
In order to be illustrated more clearly in embodiment of the present utility model, will make simple explanation to the required accompanying drawing of using among description the utility model embodiment below.Apparent, the accompanying drawing in describing below only is some embodiment that put down in writing in the utility model, to those skilled in the art, under the situation of not paying creative work, can also obtain other accompanying drawing according to following accompanying drawing.
Fig. 1 is the structural representation of the utility model embodiment;
Wherein the component name of Reference numeral correspondence is called:
The 1-front connector, joint behind the 2-, 3-dovetail ring, 4-tapered protrusion, 5-bellmouth, 6-bolt, 7-seal gasket, 8-half dovetail boss.
The specific embodiment
In order to make those skilled in the art understand the utility model better, below in conjunction with the accompanying drawing among the utility model embodiment the technical scheme among the utility model embodiment is carried out clear, complete description.Apparent, embodiment described below only is the part among the utility model embodiment, rather than all.Based on the embodiment of the utility model record, other all embodiment that those skilled in the art obtain under the situation of not paying creative work are all in the scope of the utility model protection.
Embodiment:
As shown in Figure 1, a kind of oil drilling jointing, it comprises front connector 1, back joint 2 and dovetail ring 3, front connector 1 and back joint 2 all are hollow-core construction, the front end periphery of the rear perpheral of front connector 1 and back joint 2 all is provided with half dovetail boss 8, the rear end of front connector 1 is provided with tapered protrusion 4, the front end of back joint 2 is provided with bellmouth 5, tapered protrusion 4 is provided with external screw thread, be provided with internal thread in the bellmouth 5, tapered protrusion 4 and bellmouth 5 are by being threaded, and the front end of back joint 2 is close in the rear end of front connector 1, by being threaded, its stress distribution is even on the basis of tapered protrusion 4 and bellmouth 5, and the situation that can effectively prevent to lose efficacy takes place.Dovetail ring 3 is embedded on the half dovetail boss 8, and two dovetail rings 3 are connected and fixed by bolt 6.By cooperating of half dovetail boss 8 and dovetail ring 3, can prevent front connector 1 and back joint 2 screw thread loosening in the course of the work, the situation that can prevent to lose efficacy takes place.Be provided with seal gasket 7 between two above-mentioned dovetail rings 3, good sealing effect, and can prevent front connector 1 and back joint 2 becoming flexible of screw thread in the course of the work, the situation that prevention was lost efficacy takes place.Above-mentioned internal thread and external screw thread are angular thread.
Claims (3)
1. oil drilling jointing, it is characterized in that: it comprises front connector (1), back joint (2) and dovetail ring (3), front connector (1) and back joint (2) all are hollow-core construction, the front end periphery of the rear perpheral of front connector (1) and back joint (2) all is provided with half dovetail boss (8), the rear end of front connector (1) is provided with tapered protrusion (4), the front end of back joint (2) is provided with bellmouth (5), tapered protrusion (4) is provided with external screw thread, bellmouth is provided with internal thread in (5), tapered protrusion (4) and bellmouth (5) are by being threaded, and the front end of back joint (2) is close in the rear end of front connector (1), dovetail ring (3) is embedded on the half dovetail boss (8), and two dovetail rings (3) are connected and fixed by bolt (6).
2. a kind of oil drilling jointing according to claim 1 is characterized in that: be provided with seal gasket (7) between described two dovetail rings (3).
3. a kind of oil drilling jointing according to claim 2, it is characterized in that: described internal thread and external screw thread are angular thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067942 CN203050552U (en) | 2013-02-06 | 2013-02-06 | Connecting joint for petroleum drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067942 CN203050552U (en) | 2013-02-06 | 2013-02-06 | Connecting joint for petroleum drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050552U true CN203050552U (en) | 2013-07-10 |
Family
ID=48733517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320067942 Expired - Fee Related CN203050552U (en) | 2013-02-06 | 2013-02-06 | Connecting joint for petroleum drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050552U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060947A (en) * | 2014-06-19 | 2014-09-24 | 中国海洋石油总公司 | Joint for riser pipe |
| CN107202072A (en) * | 2017-07-19 | 2017-09-26 | 王萌 | A kind of transmission shaft connecting mechanism |
| CN111827891A (en) * | 2020-08-05 | 2020-10-27 | 田飞 | Petroleum drilling safety joint |
-
2013
- 2013-02-06 CN CN 201320067942 patent/CN203050552U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060947A (en) * | 2014-06-19 | 2014-09-24 | 中国海洋石油总公司 | Joint for riser pipe |
| CN104060947B (en) * | 2014-06-19 | 2016-07-13 | 中国海洋石油总公司 | A kind of joint for riser pipe |
| CN107202072A (en) * | 2017-07-19 | 2017-09-26 | 王萌 | A kind of transmission shaft connecting mechanism |
| CN111827891A (en) * | 2020-08-05 | 2020-10-27 | 田飞 | Petroleum drilling safety joint |
| CN111827891B (en) * | 2020-08-05 | 2022-05-06 | 扬州苏油油成商贸实业有限公司 | Petroleum drilling safety joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140206 |